> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/web/xxe/file-reading-with-xinclude.md).
# 使用 XInclude 读取文件
使用 XInclude 读取文件笔记，适用于 PortSwigger Web Security Academy 实验室，包括利用流程、载荷测试、Burp Suite 验证和修复上下文。
### 利用 XInclude 读取文件
实验室有一个 **检查库存** 一个功能，它会将用户提供的输入插入到服务器端 XML 文档中，然后进行扫描。你无法控制整个 XML 文档，因此不可能为经典 XXE 定义 DTD。
使用 **XInclude** 以恢复……的内容 **/etc/passwd** 通过注入一个将由服务器端解析器解析的 XInclude 包含来读取文件。
* 初始发送的设置： `productId=1&storeId=1`.
```php
productId=1&storeId=1
```
* 检查：……的值 `productId` 会被恢复并由服务器分析。例如 `productId=test&storeId=1` 会被解析并回显。
```
productId=test&storeId=1
```
向……中注入一个 XInclude 包含 `productId` 以强制读取本地文件。
```xml
```
发送的参数示例：
```xml
productId=&storeId=1
```
解析器解释该 XInclude 包含并将 `/etc/passwd` 内容整合到所分析的文档中——提供于 `productId` 会被处理，文件会被读取。
---
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